Ecology Exam 12/12 Word Scramble
|
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
| Question | Answer |
| A flower is not ideally matched with a pollinator that visits it daily. Why might that be? | The flower has several other pollinators with differing traits. |
| A food web is a better representation of a community than a food chain because most interactions among organisms are what? | are diffuse across a range of contexts |
| A realized niche can be larger than a fundamental niche when? | when a commensal species expands another's niche space. |
| A remora feeds on the scraps that escape from a shark's mouth while feeding. It has no clear positive or negative impact on the shark. This is an example of what? | commensalism |
| A species of cattail inhabits both deep and shallow water in the absence of a competitor but only shallow water in the presence of it. This is an example of what? | a realized niche |
| Adaptive radiation is often the result of what? | resource competition |
| An ecological niche is typically ________ dimension/s. | an unspecified number of |
| An invasive bullfrog consumes a Taricha newt and dies immediately. What can you say about the toxin? | It is toxic to general vertebrate predators |
| As predators feed on prey, prey abundances decrease over time. This is predicted to result in a(n) what? | decrease in predator abundance |
| As the population of a predator increases, the ________ | population of the prey species decreases |
| As two competing species approach their respective carrying capacities, the growth rate of the other species does what? | slows down |
| Hummingbirds are attracted to red flowers with long tubes. What might you predict would happen to flowers if hummingbirds become the predominant species on a remote island? | Flowers would become gradually more red |
| In an area with high soil nutrient availability, mycorrhizal fungi are what? | parasitic |
| In comparison to desert habitats, urban landscapes on average have a ______ number of bird species? | lower |
| In most plant-pollinator interactions, plants species are pollinated by _______ | multiple animal species, and each animal species pollinates multiple plant species |
| Mycorrhizal fungi have a mutually beneficial relationship with plants in environments with soils that are/have what? | are low in nutrients |
| On a dare, a student challenges another student to lick a California newt (Taricha torosa). From which population of newts should the student grab an individual to reduce his or her risk of a toxic dose? | from a population with no garter snakes |
| Owl species A has a carrying capacity of 2000, while another owl species B has a carrying capacity of 200. What is the logical conclusion of this? | Species B uses more resources per individual |
| The carrying capacity for species 1 is 1000 and for its competitor, species 2, it is 500. What is the maximum abundance of species 1 if 250 of species 2 coexists with it? | 500 |
| The concept of the niche was initially developed by who? | Grinnell |
| The globeflower can host _______ | at least six coexisting species |
| The length of a butterfly tongue perfectly matches the nectar tube of a flower it pollinates. This is an example of what? | coevolution |
| The neurotoxin that Taricha spp. possess to ward off predators is what? | tetrodotoxin |
| The process whereby one species gives rise to several others that exploit different features of the environment is known as what? | adaptive radiation |
| The red line in the figure (the furthest to the right) represents what? (the graph has resistance on the y axis and TTX does on the X axis) | highly resistant garter snake population |
| 2 species of cattail live in water along shoreline of ponds. agustifolia can live in water 0-20 cm deep, but in presence of latifolia, only in water > 20 cm deep; T. latifolia in shallower water. T. agustifolia is limited by competition exploiting its | realized niche |
| Urbanization impacts what? | most species negatively, but a few positively |
| What does the following formula represent? dN1/dt = r1N1(1 - (N1 + N2)/K1) | population growth of species 1 in presence of species 2 |
| What is the difference between a parasite and a parasitoid? | A parasitoid typically always kill its host |
| What might happen over time if two bird species competed for the same seed resource and one preferred larger seeds while the other species preferred smaller ones? | Beak sizes might shift over time |
| When a species of bird preys upon the seeds of a plant and favors the smallest seeds, what happens? | natural selection favors individual plants that produce the largest seeds |
| When the relationship between two interacting species is detrimental to the populations of both species, the interaction is referred to as ____ | competition |
| When trunk or limb of tree provides the substrate on which an epiphytic orchid grows, the arrangement benefits the orchid, which gets nutrients from the air & moisture from aerial roots, while tree is unaffected. The relationship is referred to as ____ | commensalism |
| Which of the following has the strongest impact on species 1 population size? N2 = | 750 |
| Which of the following interactions would be considered predation? a. - 0 b. - - c. + 0 d. + - | d. + - |
| _____ occurs when two species undergo reciprocal evolutionary change through natural selection | coevolution |
| The ____ niche is the portion of a fundamental niche in which species can exploit as a result of interactions with other species. | realized |
| The process in which a network of species undergoes reciprocal evolutionary change through natural selection is referred to as ____ | diffuse coevolution |
| The range of physical and chemical conditions under which each species can persist (survive and reproduce) and the array of essential resources it utilizes are referred to as its ecological _____ | niche |
| Under certain condition, ____ fungi live in the roots of many species of plants and have a mutually beneficial relationship with plants. | mycorrhizal |
| When each of two species benefits from their interaction, the relationship is referred to as _____ | mutualism |
| When individuals of two species interact, the nature of the interaction can be classified qualitatively as positive, negative, or ____ | neutral |
| When one species feeds on another prey species, typically killing it, the relationship between the two interacting species is referred to as _____ | predation |
| When one species reduces or adversely affects the population of another, but the affected species has no influence in return, the relationship is referred to as a ______ | amensalism |
| When the interaction is detrimental to the population of both species (-,-) it is referred to as _______ | competition |
| T/F: Adaptive radiation can result from divergent adaptations to avoid predators. | True |
| T/F: An organism's realized niche is always smaller than its fundamental niche. | False |
| T/F: In a parasitic relationship between two species, the host species usually dies. | False |
| T/F: Most interspecific interactions are exclusive, involving only two species. | False |
| T/F: Parasitoidism is a form of mutualism. | False |
| T/F: Predation always has a negative effect on the individual prey. | True |
| T/F: Species having wide geographic distributions generally encounter a broader range of physical environmental conditions than species whose distribution is more restricted. | True |
| T/F: The interaction between two species usually influences all individuals within the respective populations equally. | False |
| T/F: The relationship between nectar-producing flowers and nectar-feeding birds is a mutually beneficial interaction. | True |
| T/F: When the population size of a prey species increases, the birthrate of a predator species should also increase. | True |
Created by:
phebe
Popular Ecology sets